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[exim.git] / src / src / functions.h
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059ec3d9
PH		 1/*************************************************
2* Exim - an Internet mail transport agent *
3*************************************************/
4
f9ba5e22 5/* Copyright (c) University of Cambridge 1995 - 2018 */
059ec3d9
PH		 6/* See the file NOTICE for conditions of use and distribution. */
7
8
9/* Prototypes for functions that appear in various modules. Gathered together
10to avoid having a lot of tiddly little headers with only a couple of lines in
11them. However, some functions that are used (or not used) by utility programs
12are in in fact in separate headers. */
b66fecb4
HSHR		 13#ifndef _FUNCTIONS_H_
14#define _FUNCTIONS_H_
059ec3d9
PH		 15
16
17#ifdef EXIM_PERL
acec9514 18extern gstring *call_perl_cat(gstring *, uschar **, uschar *,
268d00ff 19 uschar **) WARN_UNUSED_RESULT;
059ec3d9
PH		 20extern void cleanup_perl(void);
21extern uschar *init_perl(uschar *);
22#endif
23
24
01603eec 25#ifndef DISABLE_TLS
a799883d
PP		 26extern const char *
27 std_dh_prime_default(void);
28extern const char *
29 std_dh_prime_named(const uschar *);
9d1c15ef 30
9e4dddbd 31extern uschar * tls_cert_crl_uri(void *, uschar * mod);
9d1c15ef 32extern uschar * tls_cert_ext_by_oid(void *, uschar *, int);
9e4dddbd
JH		 33extern uschar * tls_cert_issuer(void *, uschar * mod);
34extern uschar * tls_cert_not_before(void *, uschar * mod);
35extern uschar * tls_cert_not_after(void *, uschar * mod);
36extern uschar * tls_cert_ocsp_uri(void *, uschar * mod);
37extern uschar * tls_cert_serial_number(void *, uschar * mod);
38extern uschar * tls_cert_signature(void *, uschar * mod);
39extern uschar * tls_cert_signature_algorithm(void *, uschar * mod);
40extern uschar * tls_cert_subject(void *, uschar * mod);
41extern uschar * tls_cert_subject_altname(void *, uschar * mod);
42extern uschar * tls_cert_version(void *, uschar * mod);
9d1c15ef 43
59b87190 44extern uschar * tls_cert_der_b64(void * cert);
6a8a60e0
JH		 45extern uschar * tls_cert_fprt_md5(void *);
46extern uschar * tls_cert_fprt_sha1(void *);
9ef9101c 47extern uschar * tls_cert_fprt_sha256(void *);
6a8a60e0 48
c05bdbd6
JH		 49extern BOOL tls_client_start(client_conn_ctx *, smtp_connect_args *,
50 void *, tls_support *, uschar **);
51
74f1a423 52extern void tls_close(void *, int);
925ac8e4 53extern BOOL tls_could_read(void);
b10c87b3 54extern void tls_daemon_init(void);
9d1c15ef 55extern int tls_export_cert(uschar *, size_t, void *);
059ec3d9
PH		 56extern int tls_feof(void);
57extern int tls_ferror(void);
790fbb71 58extern void tls_free_cert(void **);
bd8fbe36 59extern int tls_getc(unsigned);
0d81dabc 60extern uschar *tls_getbuf(unsigned *);
584e96c6 61extern void tls_get_cache(void);
9d1c15ef 62extern int tls_import_cert(const uschar *, void **);
74f1a423 63extern int tls_read(void *, uschar *, size_t);
cf0c6164 64extern int tls_server_start(const uschar *, uschar **);
58eb016e 65extern BOOL tls_smtp_buffered(void);
059ec3d9 66extern int tls_ungetc(int);
74f1a423 67extern int tls_write(void *, const uschar *, size_t, BOOL);
3375e053 68extern uschar *tls_validate_require_cipher(void);
36f12725 69extern void tls_version_report(FILE *);
de517fd3 70# ifdef USE_OPENSSL
77bb000f 71extern BOOL tls_openssl_options_parse(uschar *, long *);
e51c7be2 72# endif
55414b25
JH		 73extern uschar * tls_field_from_dn(uschar *, const uschar *);
74extern BOOL tls_is_name_for_cert(const uschar *, void *);
0e66b3b6 75
c0635b6d 76# ifdef SUPPORT_DANE
4b0fe319 77extern int tlsa_lookup(const host_item *, dns_answer *, BOOL);
0e66b3b6
JH		 78# endif
79
01603eec 80#endif /*DISABLE_TLS*/
059ec3d9
PH		 81
82
83/* Everything else... */
84
85extern acl_block *acl_read(uschar *(*)(void), uschar **);
86extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
05caaeaa 87extern int acl_eval(int, uschar *, uschar **, uschar **);
333eea9c 88
38a0a95f
PH		 89extern tree_node *acl_var_create(uschar *);
90extern void acl_var_write(uschar *, uschar *, void *);
617d3932
JH		 91
92#ifdef EXPERIMENTAL_ARC
93extern void *arc_ams_setup_sign_bodyhash(void);
94extern const uschar *arc_header_feed(gstring *, BOOL);
95extern gstring *arc_sign(const uschar *, gstring *, uschar **);
b3d9ebf5 96extern void arc_sign_init(void);
617d3932 97extern const uschar *acl_verify_arc(void);
9cffa436 98extern uschar * fn_arc_domains(void);
617d3932
JH		 99#endif
100
cf0812d5 101extern void assert_no_variables(void *, int, const char *, int);
e1af7642 102extern int auth_call_pam(const uschar *, uschar **);
059ec3d9 103extern int auth_call_pwcheck(uschar *, uschar **);
93a6fce2
JH		 104extern int auth_call_radius(const uschar *, uschar **);
105extern int auth_call_saslauthd(const uschar *, const uschar *,
106 const uschar *, const uschar *, uschar **);
16ff981e 107extern int auth_check_serv_cond(auth_instance *);
44bbabb5 108extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
37942ad8
JH		 109extern int auth_client_item(void *, auth_instance *, const uschar **,
110 unsigned, int, uschar *, int);
44bbabb5 111
e1d04f48 112
1f20760b 113extern int auth_get_data(uschar **, const uschar *, int);
059ec3d9 114extern int auth_get_no64_data(uschar **, uschar *);
8238bc7b 115extern int auth_prompt(const uschar *);
37942ad8 116extern int auth_read_input(const uschar *);
adf73d37 117extern void auth_show_supported(FILE *);
059ec3d9
PH		 118extern uschar *auth_xtextencode(uschar *, int);
119extern int auth_xtextdecode(uschar *, uschar **);
120
c9cf9ac4
JH		 121#ifdef EXPERIMENTAL_ARC
122extern gstring *authres_arc(gstring *);
dfbcb5ac
JH		 123#endif
124#ifndef DISABLE_DKIM
125extern gstring *authres_dkim(gstring *);
126#endif
c9cf9ac4
JH		 127#ifdef EXPERIMENTAL_DMARC
128extern gstring *authres_dmarc(gstring *);
129#endif
130extern gstring *authres_smtpauth(gstring *);
131#ifdef SUPPORT_SPF
132extern gstring *authres_spf(gstring *);
617d3932 133#endif
dfbcb5ac 134
1f20760b 135extern uschar *b64encode(const uschar *, int);
35cf75e9 136extern int b64decode(const uschar *, uschar **);
bd8fbe36 137extern int bdat_getc(unsigned);
0d81dabc 138extern uschar *bdat_getbuf(unsigned *);
f6f4a58d 139extern int bdat_ungetc(int);
1ebe15c3
JH		 140extern void bdat_flush_data(void);
141
6c6d6e48
TF		 142extern void bits_clear(unsigned int *, size_t, int *);
143extern void bits_set(unsigned int *, size_t, int *);
144
57cc2785 145extern void cancel_cutthrough_connection(BOOL, const uschar *);
55414b25 146extern int check_host(void *, const uschar *, const uschar **, uschar **);
059ec3d9 147extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
55414b25
JH		 148extern pid_t child_open_uid(const uschar **, const uschar **, int,
149 uid_t *, gid_t *, int *, int *, uschar *, BOOL);
bc3c7bb7 150extern BOOL cleanup_environment(void);
6851a9c5
JH		 151extern void cutthrough_data_puts(uschar *, int);
152extern void cutthrough_data_put_nl(void);
e4bdf652
JH		 153extern uschar *cutthrough_finaldot(void);
154extern BOOL cutthrough_flush_send(void);
155extern BOOL cutthrough_headers_send(void);
156extern BOOL cutthrough_predata(void);
57cc2785 157extern void release_cutthrough_connection(const uschar *);
059ec3d9
PH		 158
159extern void daemon_go(void);
6a8f9482
TK		 160
161#ifdef EXPERIMENTAL_DCC
162extern int dcc_process(uschar **);
163#endif
164
ed7f7860 165extern void debug_logging_activate(uschar *, uschar *);
b0d68adc 166extern void debug_logging_stop(void);
55414b25 167extern void debug_print_argv(const uschar **);
059ec3d9 168extern void debug_print_ids(uschar *);
e1d04f48 169extern void debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);
059ec3d9
PH		 170extern void debug_print_string(uschar *);
171extern void debug_print_tree(tree_node *);
398f9af3 172extern void debug_vprintf(int, const char *, va_list);
6c6d6e48
TF		 173extern void decode_bits(unsigned int *, size_t, int *,
174 uschar *, bit_table *, int, uschar *, int);
059ec3d9 175extern address_item *deliver_make_addr(uschar *, BOOL);
476be7e2 176extern void deliver_init(void);
817d9f57 177extern void delivery_log(int, address_item *, int, uschar *);
059ec3d9 178extern int deliver_message(uschar *, BOOL, BOOL);
e0df1c83 179extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
059ec3d9
PH		 180extern void deliver_set_expansions(address_item *);
181extern int deliver_split_address(address_item *);
182extern void deliver_succeeded(address_item *);
a39bd74d
JB		 183
184extern uschar *deliver_get_sender_address (uschar *id);
57cc2785 185extern void delivery_re_exec(int);
a39bd74d 186
1ba28e2b 187extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
80a47a2c 188#ifndef DISABLE_DKIM
617d3932
JH		 189extern uschar *dkim_exim_query_dns_txt(uschar *);
190extern void dkim_exim_sign_init(void);
191
42055a33 192extern BOOL dkim_transport_write_message(transport_ctx *,
b9df1829 193 struct ob_dkim *, const uschar ** errstr);
f7572e5a 194#endif
059ec3d9 195extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
476be7e2 196extern int dns_basic_lookup(dns_answer *, const uschar *, int);
55414b25 197extern void dns_build_reverse(const uschar *, uschar *);
8c51eead 198extern void dns_init(BOOL, BOOL, BOOL);
0539a19d 199extern BOOL dns_is_aa(const dns_answer *);
1dc92d5a 200extern BOOL dns_is_secure(const dns_answer *);
55414b25 201extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
476be7e2 202extern void dns_pattern_init(void);
55414b25 203extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
dd708fd7 204extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);
059ec3d9 205extern uschar *dns_text_type(int);
36a3ae5f 206extern void dscp_list_to_stream(FILE *);
9e4f5962 207extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
059ec3d9
PH		 208
209extern void enq_end(uschar *);
e8ae7214 210extern BOOL enq_start(uschar *, unsigned);
0cbf2b82 211#ifndef DISABLE_EVENT
55414b25 212extern uschar *event_raise(uschar *, const uschar *, uschar *);
5ef5dd52 213extern void msg_event_raise(const uschar *, const address_item *);
774ef2d7 214#endif
b66fecb4
HSHR		 215
216extern int exim_chown_failure(int, const uschar*, uid_t, gid_t);
37f3dc43 217extern const uschar * exim_errstr(int);
9bfb7e1b 218extern void exim_exit(int, const uschar *);
059ec3d9
PH		 219extern void exim_nullstd(void);
220extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
059ec3d9 221extern void exim_wait_tick(struct timeval *, int);
9c695f6d
JH		 222extern int exp_bool(address_item *addr,
223 uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
224 uschar *svalue, BOOL *rvalue);
059ec3d9 225extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
617d3932 226extern uschar *expand_file_big_buffer(const uschar *);
93a6fce2
JH		 227extern uschar *expand_string(uschar *); /* public, cannot make const */
228extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
f42deca9 229extern uschar *expand_hide_passwords(uschar * );
55414b25 230extern uschar *expand_string_copy(const uschar *);
97d17305 231extern int_eximarith_t expand_string_integer(uschar *, BOOL);
d9b2312b 232extern void modify_variable(uschar *, void *);
059ec3d9 233
0a5441fc 234extern BOOL fd_ready(int, time_t);
4e71661f 235
059ec3d9
PH		 236extern int filter_interpret(uschar *, int, address_item **, uschar **);
237extern BOOL filter_personal(string_item *, BOOL);
f05da2e8 238extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
059ec3d9
PH		 239extern BOOL filter_system_interpret(address_item **, uschar **);
240
362145b5
JH		 241extern uschar * fn_hdrs_added(void);
242
1ba28e2b 243extern void header_add(int, const char *, ...);
049782c0 244extern header_line *header_add_at_position_internal(BOOL, uschar *, BOOL, int, const char *, ...);
059ec3d9
PH		 245extern int header_checkname(header_line *, BOOL);
246extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
7cd1141b 247extern int host_address_extract_port(uschar *);
059ec3d9 248extern uschar *host_and_ident(BOOL);
55414b25
JH		 249extern int host_aton(const uschar *, int *);
250extern void host_build_hostlist(host_item **, const uschar *, BOOL);
251extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
059ec3d9
PH		 252extern void host_build_log_info(void);
253extern void host_build_sender_fullhost(void);
a207d5dd 254extern int host_find_byname(host_item *, const uschar *, int,
1f155f8e 255 const uschar **, BOOL);
55414b25 256extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
7cd171b7 257 uschar *, const dnssec_domains *, const uschar **, BOOL *);
059ec3d9 258extern ip_address_item *host_find_interfaces(void);
55414b25 259extern BOOL host_is_in_net(const uschar *, const uschar *, int);
059ec3d9 260extern BOOL host_is_tls_on_connect_port(int);
7cd1141b 261extern int host_item_get_port(host_item *);
059ec3d9
PH		 262extern void host_mask(int, int *, int);
263extern int host_name_lookup(void);
6f0c9a4f 264extern int host_nmtoa(int, int *, int, uschar *, int);
059ec3d9
PH		 265extern uschar *host_ntoa(int, const void *, uschar *, int *);
266extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
267
94431adb 268extern uschar *imap_utf7_encode(uschar *, const uschar *,
ed0512a1
JH		 269 uschar, uschar *, uschar **);
270
83e029d5 271extern void invert_address(uschar *, uschar *);
7eb6c37c 272extern int ip_addr(void *, int, const uschar *, int);
059ec3d9 273extern int ip_bind(int, int, uschar *, int);
0ab63f3d 274extern int ip_connect(int, int, const uschar *, int, int, const blob *);
b1f8e4f8 275extern int ip_connectedsocket(int, const uschar *, int, int,
4a5cbaff 276 int, host_item *, uschar **, const blob *);
13363eba 277extern int ip_get_address_family(int);
55414b25 278extern void ip_keepalive(int, const uschar *, BOOL);
0a5441fc 279extern int ip_recv(client_conn_ctx *, uschar *, int, time_t);
059ec3d9
PH		 280extern int ip_socket(int, int);
281
3e60dd41
JH		 282extern int ip_tcpsocket(const uschar *, uschar **, int);
283extern int ip_unixsocket(const uschar *, uschar **);
284extern int ip_streamsocket(const uschar *, uschar **, int);
285
fc4a7f70
JH		 286extern int ipv6_nmtoa(int *, uschar *);
287
921b12ca 288extern uschar *local_part_quote(uschar *);
4840604e 289extern int log_create(uschar *);
921b12ca 290extern int log_create_as_exim(uschar *);
059ec3d9
PH		 291extern void log_close_all(void);
292
d185889f 293extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
c246a1de
JH		 294extern BOOL macro_read_assignment(uschar *);
295extern uschar *macros_expand(int, int *, BOOL *);
9cd319d9 296extern void mainlog_close(void);
8523533c 297#ifdef WITH_CONTENT_SCAN
0f0c8159 298extern int malware(const uschar *, int);
dbc4b90d 299extern int malware_in_file(uschar *);
476be7e2 300extern void malware_init(void);
c11d665d 301extern void malware_show_supported(FILE *);
8523533c 302#endif
55414b25
JH		 303extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
304 unsigned int *, int, int, const uschar **);
36d295f1 305extern int match_address_list_basic(const uschar *, const uschar **, int);
55414b25
JH		 306extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
307 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
308 const uschar *, const uschar **);
309extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
310 unsigned int *, int, BOOL, const uschar **);
311extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
312 const uschar **);
059ec3d9
PH		 313extern void md5_end(md5 *, const uschar *, int, uschar *);
314extern void md5_mid(md5 *, const uschar *);
315extern void md5_start(md5 *);
316extern void millisleep(int);
8523533c
TK		 317#ifdef WITH_CONTENT_SCAN
318struct mime_boundary_context;
54cdb463
PH		 319extern int mime_acl_check(uschar *acl, FILE *f,
320 struct mime_boundary_context *, uschar **, uschar **);
55414b25 321extern int mime_decode(const uschar **);
f4d091fb 322extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
55414b25 323extern int mime_regex(const uschar **);
f4d091fb 324extern void mime_set_anomaly(int);
8523533c 325#endif
059ec3d9
PH		 326extern uschar *moan_check_errorcopy(uschar *);
327extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
328 BOOL, uschar *);
e0df1c83 329extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
5455f548
JH		 330extern BOOL moan_send_message(uschar *, int, error_block *eblock,
331 header_line *, FILE *, uschar *);
1ba28e2b 332extern void moan_tell_someone(uschar *, address_item *,
e0df1c83 333 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
059ec3d9 334extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
0e22dfd1 335extern void moan_write_from(FILE *);
1ba28e2b 336extern FILE *modefopen(const uschar *, const char *, mode_t);
059ec3d9 337
f9334a28 338extern int open_cutthrough_connection( address_item * addr );
e4bdf652 339
059ec3d9
PH		 340extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
341 BOOL);
342extern int parse_forward_list(uschar *, int, address_item **, uschar **,
55414b25 343 const uschar *, uschar *, error_block **);
059ec3d9
PH		 344extern uschar *parse_find_address_end(uschar *, BOOL);
345extern uschar *parse_find_at(uschar *);
55414b25 346extern const uschar *parse_fix_phrase(const uschar *, int, uschar *, int);
30dba1e6 347extern uschar *parse_message_id(uschar *, uschar **, uschar **);
55414b25 348extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL);
43ad7b7d 349extern uschar *parse_date_time(uschar *str, time_t *t);
17c76198 350extern int vaguely_random_number(int);
01603eec 351#ifndef DISABLE_TLS
17c76198
PP		 352extern int vaguely_random_number_fallback(int);
353#endif
059ec3d9
PH		 354
355extern BOOL queue_action(uschar *, int, uschar **, int, int);
356extern void queue_check_only(void);
357extern void queue_list(int, uschar **, int);
358extern void queue_count(void);
359extern void queue_run(uschar *, uschar *, BOOL);
360
361extern int random_number(int);
aeb65e91 362extern const uschar *rc_to_string(int);
e4a89c47 363extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
efd9a422
MH		 364 uschar *, uschar *, uschar *, ugid_block *, address_item **,
365 uschar **, error_block **, int *, uschar *);
059ec3d9
PH		 366extern int rda_is_filter(const uschar *);
367extern BOOL readconf_depends(driver_instance *, uschar *);
368extern void readconf_driver_init(uschar *, driver_instance **,
369 driver_info *, int, void *, int, optionlist *, int);
370extern uschar *readconf_find_option(void *);
34e86e20 371extern void readconf_main(BOOL);
383832ef 372extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
2be324ee 373extern BOOL readconf_print(uschar *, uschar *, BOOL);
059ec3d9
PH		 374extern uschar *readconf_printtime(int);
375extern uschar *readconf_readname(uschar *, int, uschar *);
1ad6489e 376extern int readconf_readtime(const uschar *, int, BOOL);
bf3c2c6b 377extern void readconf_rest(void);
55414b25 378extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
bf3c2c6b 379extern void readconf_save_config(const uschar *);
328895cc 380extern void read_message_body(BOOL);
8f128379 381extern void receive_bomb_out(uschar *, uschar *);
059ec3d9
PH		 382extern BOOL receive_check_fs(int);
383extern BOOL receive_check_set_sender(uschar *);
384extern BOOL receive_msg(BOOL);
a45431fa 385extern int_eximarith_t receive_statvfs(BOOL, int *);
059ec3d9 386extern void receive_swallow_smtp(void);
8523533c 387#ifdef WITH_CONTENT_SCAN
55414b25 388extern int regex(const uschar **);
8523533c 389#endif
1dc92d5a 390extern BOOL regex_match_and_setup(const pcre *, const uschar *, int, int);
476be7e2 391extern const pcre *regex_must_compile(const uschar *, BOOL, BOOL);
059ec3d9 392extern void retry_add_item(address_item *, uschar *, int);
55414b25 393extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
059ec3d9 394 uschar **, uschar **);
55414b25
JH		 395extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
396extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
ba9af0af 397 dbdata_retry *, time_t);
059ec3d9
PH		 398extern void retry_update(address_item **, address_item **, address_item **);
399extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
400extern uschar *rewrite_address_qualify(uschar *, BOOL);
55414b25
JH		 401extern header_line *rewrite_header(header_line *,
402 const uschar *, const uschar *,
059ec3d9
PH		 403 rewrite_rule *, int, BOOL);
404extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
405 rewrite_rule *);
406extern void rewrite_test(uschar *);
407extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
408 uschar **);
409extern int route_address(address_item *, address_item **, address_item **,
410 address_item **, address_item **, int);
55414b25
JH		 411extern int route_check_prefix(const uschar *, const uschar *);
412extern int route_check_suffix(const uschar *, const uschar *);
059ec3d9 413extern BOOL route_findgroup(uschar *, gid_t *);
55414b25 414extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
059ec3d9
PH		 415extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
416 uschar **);
417extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
418 struct passwd **, uid_t *, uschar **);
419extern void route_init(void);
adf73d37 420extern void route_show_supported(FILE *);
059ec3d9
PH		 421extern void route_tidyup(void);
422
55414b25 423extern uschar *search_find(void *, uschar *, uschar *, int, const uschar *, int,
059ec3d9 424 int, int *);
55414b25
JH		 425extern int search_findtype(const uschar *, int);
426extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
059ec3d9
PH		 427 int *);
428extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
429extern void search_tidyup(void);
e0df1c83 430extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
5fb822fc
JH		 431extern void sha1_end(hctx *, const uschar *, int, uschar *);
432extern void sha1_mid(hctx *, const uschar *);
433extern void sha1_start(hctx *);
e4a89c47 434extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
efd9a422 435 uschar *, address_item **, uschar **);
059ec3d9 436extern void sigalrm_handler(int);
58eb016e 437extern BOOL smtp_buffered(void);
059ec3d9 438extern void smtp_closedown(uschar *);
9723f966
JH		 439extern void smtp_command_timeout_exit(void);
440extern void smtp_command_sigterm_exit(void);
441extern void smtp_data_timeout_exit(void);
442extern void smtp_data_sigint_exit(void);
a09f2942 443extern uschar *smtp_cmd_hist(void);
ee8b8090 444extern int smtp_connect(smtp_connect_args *, const blob *);
7eb6c37c 445extern int smtp_sock_connect(host_item *, int, int, uschar *,
0ab63f3d 446 transport_instance * tb, int, const blob *);
059ec3d9
PH		 447extern int smtp_feof(void);
448extern int smtp_ferror(void);
449extern uschar *smtp_get_connection_info(void);
6f6dedcc 450extern BOOL smtp_get_interface(uschar *, int, address_item *,
059ec3d9
PH		 451 uschar **, uschar *);
452extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
bd8fbe36 453extern int smtp_getc(unsigned);
0d81dabc 454extern uschar *smtp_getbuf(unsigned *);
584e96c6 455extern void smtp_get_cache(void);
059ec3d9 456extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
b4ed4da0 457extern void smtp_log_no_mail(void);
4f6ae5c3 458extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
74f1a423 459extern void smtp_proxy_tls(void *, uschar *, size_t, int *, int);
251b9eb4 460extern BOOL smtp_read_response(void *, uschar *, int, int, int);
e04bfa34 461extern void smtp_reset(void *);
a5bd321b 462extern void smtp_respond(uschar *, int, BOOL, uschar *);
8f128379 463extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
58c30e47 464extern void smtp_port_for_connect(host_item *, int);
059ec3d9
PH		 465extern void smtp_send_prohibition_message(int, uschar *);
466extern int smtp_setup_msg(void);
467extern BOOL smtp_start_session(void);
468extern int smtp_ungetc(int);
d7b47fd0 469extern BOOL smtp_verify_helo(void);
251b9eb4 470extern int smtp_write_command(void *, int, const char *, ...) PRINTF_FUNCTION(3,4);
8523533c 471#ifdef WITH_CONTENT_SCAN
55414b25 472extern int spam(const uschar **);
040721f2 473extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **);
8523533c 474#endif
4b4856ff 475extern void spool_clear_header_globals(void);
3369a853 476extern uschar *spool_dname(const uschar *, uschar *);
b4758425 477extern uschar *spool_fname(const uschar *, const uschar *, const uschar *, const uschar *);
4b4856ff 478extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
789f8a4f 479extern int spool_open_datafile(uschar *);
059ec3d9
PH		 480extern int spool_open_temp(uschar *);
481extern int spool_read_header(uschar *, BOOL, BOOL);
4b4856ff 482extern uschar *spool_sname(const uschar *, uschar *);
059ec3d9 483extern int spool_write_header(uschar *, int, uschar **);
bd8fbe36 484extern int stdin_getc(unsigned);
059ec3d9
PH		 485extern int stdin_feof(void);
486extern int stdin_ferror(void);
487extern int stdin_ungetc(int);
acec9514
JH		 488extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
489extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
490extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
bce15b62 491extern gstring *string_append2_listele_n(gstring *, const uschar *, const uschar *, unsigned) WARN_UNUSED_RESULT;
059ec3d9 492extern uschar *string_base62(unsigned long int);
acec9514
JH		 493extern gstring *string_cat (gstring *, const uschar * ) WARN_UNUSED_RESULT;
494extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;
84bbb4d8 495extern int string_compare_by_pointer(const void *, const void *);
059ec3d9 496extern uschar *string_copy_dnsdomain(uschar *);
55414b25 497extern uschar *string_copy_malloc(const uschar *);
55414b25 498extern uschar *string_dequote(const uschar **);
d12746bc 499extern gstring *string_fmt_append(gstring *, const char *, ...) ALMOST_PRINTF(2,3);
81f91683 500extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
059ec3d9 501extern uschar *string_format_size(int, uschar *);
55414b25 502extern int string_interpret_escape(const uschar **);
b1f8e4f8 503extern int string_is_ip_address(const uschar *, int *);
8c5d388a 504#ifdef SUPPORT_I18N
0d7911ea
JH		 505extern BOOL string_is_utf8(const uschar *);
506#endif
55414b25 507extern uschar *string_nextinlist(const uschar **, int *, uschar *, int);
e0df1c83 508extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
55414b25 509extern const uschar *string_printing2(const uschar *, BOOL);
e28326d8 510extern uschar *string_split_message(uschar *);
306c6c77 511extern uschar *string_timediff(struct timeval *);
0f1a8658 512extern uschar *string_timesince(struct timeval *);
c7396ac5 513extern uschar *string_unprinting(uschar *);
8c5d388a 514#ifdef SUPPORT_I18N
3c8b3577 515extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
0d7911ea
JH		 516extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
517extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
518extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
519extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
520#endif
d12746bc 521extern gstring *string_vformat(gstring *, BOOL, const char *, va_list);
1ba28e2b
PP		 522extern int strcmpic(const uschar *, const uschar *);
523extern int strncmpic(const uschar *, const uschar *, int);
059ec3d9
PH		 524extern uschar *strstric(uschar *, uschar *, BOOL);
525
10ac8d7f
JH		 526#ifdef EXIM_TFO_PROBE
527extern void tfo_probe(void);
528#endif
32dfdf8b
JH		 529extern void timesince(struct timeval * diff, struct timeval * then);
530extern void tls_modify_variables(tls_support *);
059ec3d9 531extern uschar *tod_stamp(int);
41afb5cb 532
55414b25 533extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
a39bd74d 534 BOOL *, oicf, void*);
059ec3d9 535extern void transport_init(void);
57cc2785
JH		 536extern void transport_do_pass_socket(const uschar *, const uschar *,
537 const uschar *, uschar *, int);
55414b25 538extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
059ec3d9
PH		 539 int);
540extern uschar *transport_rcpt_address(address_item *, BOOL);
55414b25
JH		 541extern BOOL transport_set_up_command(const uschar ***, uschar *,
542 BOOL, int, address_item *, uschar *, uschar **);
059ec3d9 543extern void transport_update_waiting(host_item *, uschar *);
42055a33
JH		 544extern BOOL transport_write_block(transport_ctx *, uschar *, int, BOOL);
545extern void transport_write_reset(int);
1ba28e2b 546extern BOOL transport_write_string(int, const char *, ...);
42055a33
JH		 547extern BOOL transport_headers_send(transport_ctx *,
548 BOOL (*)(transport_ctx *, uschar *, int));
adf73d37 549extern void transport_show_supported(FILE *);
42055a33 550extern BOOL transport_write_message(transport_ctx *, int);
059ec3d9
PH		 551extern void tree_add_duplicate(uschar *, address_item *);
552extern void tree_add_nonrecipient(uschar *);
553extern void tree_add_unusable(host_item *);
554extern int tree_insertnode(tree_node **, tree_node *);
55414b25 555extern tree_node *tree_search(tree_node *, const uschar *);
059ec3d9 556extern void tree_write(tree_node *, FILE *);
38a0a95f 557extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
059ec3d9 558
8523533c
TK		 559#ifdef WITH_CONTENT_SCAN
560extern void unspool_mbox(void);
561#endif
8c5d388a 562#ifdef SUPPORT_I18N
fc362fc5
JH		 563extern void utf8_version_report(FILE *);
564#endif
8523533c 565
4deaf07d
PH		 566extern int verify_address(address_item *, FILE *, int, int, int, int,
567 uschar *, uschar *, BOOL *);
379ba7d0 568extern int verify_check_dnsbl(int, const uschar **, uschar **);
4deaf07d 569extern int verify_check_header_address(uschar **, uschar **, int, int, int,
fe5b5d0b 570 uschar *, uschar *, int, int *);
059ec3d9 571extern int verify_check_headers(uschar **);
770747fd 572extern int verify_check_header_names_ascii(uschar **);
059ec3d9 573extern int verify_check_host(uschar **);
7c498df1 574extern int verify_check_notblind(BOOL);
3fb3231c 575extern int verify_check_given_host(const uschar **, const host_item *);
55414b25
JH		 576extern int verify_check_this_host(const uschar **, unsigned int *,
577 const uschar*, const uschar *, const uschar **);
059ec3d9
PH		 578extern address_item *verify_checked_sender(uschar *);
579extern void verify_get_ident(int);
580extern BOOL verify_sender(int *, uschar **);
581extern BOOL verify_sender_preliminary(int *, uschar **);
582extern void version_init(void);
583
42055a33 584extern BOOL write_chunk(transport_ctx *, uschar *, int);
17c76198
PP		 585extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
586
6940b3df 587
7172970e 588#if !defined(MACRO_PREDEF) && !defined(COMPILE_UTILITY)
b66fecb4 589/* exim_chown - in some NFSv4 setups *seemes* to be an issue with
6940b3df 590chown(<exim-uid>, <exim-gid>).
b66fecb4 591
6940b3df
JH		 592Probably because the idmapping is broken, misconfigured or set up in
593an unusal way. (see Bug 2931). As I'm not sure, if this was a single
594case of misconfiguration, or if there are more such broken systems
595out, I try to impose as least impact as possible and for now just write
596a panic log entry pointing to the bug report. You're encouraged to
597contact the developers, if you experience this issue.
b66fecb4 598
6940b3df
JH		 599fd the file descriptor (or -1 if not valid)
600name the file name for error messages or for file operations,
601 if fd is < 0
602owner the owner
603group the group
b66fecb4 604
6940b3df 605returns 0 on success, -1 on failure */
b66fecb4 606
6940b3df 607static inline int
b66fecb4
HSHR		 608exim_fchown(int fd, uid_t owner, gid_t group, const uschar *name)
609{
6940b3df
JH		 610return fchown(fd, owner, group)
611 ? exim_chown_failure(fd, name, owner, group) : 0;
b66fecb4
HSHR		 612}
613
6940b3df 614static inline int
b66fecb4
HSHR		 615exim_chown(const uschar *name, uid_t owner, gid_t group)
616{
6940b3df
JH		 617return chown(CCS name, owner, group)
618 ? exim_chown_failure(-1, name, owner, group) : 0;
b66fecb4 619}
e59797e3
JH		 620
621#endif /* !MACRO_PREDEF && !COMPILE_UTILITY */
622/******************************************************************************/
623/* String functions */
624
625/*************************************************
626* Copy and save string *
627*************************************************/
628
629/* This function assumes that memcpy() is faster than strcpy().
630*/
631
632#if !defined(MACRO_PREDEF)
633static inline uschar *
634string_copy(const uschar *s)
635{
636int len = Ustrlen(s) + 1;
637uschar *ss = store_get(len);
638memcpy(ss, s, len);
639return ss;
640}
641
642
643/*************************************************
644* Copy, lowercase and save string *
645*************************************************/
646
647/*
648Argument: string to copy
649Returns: copy of string in new store, with letters lowercased
650*/
651
652static inline uschar *
653string_copylc(const uschar *s)
654{
655uschar *ss = store_get(Ustrlen(s) + 1);
656uschar *p = ss;
657while (*s != 0) *p++ = tolower(*s++);
658*p = 0;
659return ss;
660}
661
662
663
664/*************************************************
665* Copy and save string, given length *
666*************************************************/
667
668/* It is assumed the data contains no zeros. A zero is added
669onto the end.
670
671Arguments:
672 s string to copy
673 n number of characters
674
675Returns: copy of string in new store
676
677This is an API for local_scan hence not static.
678*/
679
680static inline uschar *
681string_copyn(const uschar *s, int n)
682{
683uschar *ss = store_get(n + 1);
684Ustrncpy(ss, s, n);
685ss[n] = 0;
686return ss;
687}
688
689/*************************************************
690* Copy, lowercase, and save string, given length *
691*************************************************/
692
693/* It is assumed the data contains no zeros. A zero is added
694onto the end.
695
696Arguments:
697 s string to copy
698 n number of characters
699
700Returns: copy of string in new store, with letters lowercased
701*/
702
703static inline uschar *
704string_copynlc(uschar *s, int n)
705{
706uschar *ss = store_get(n + 1);
707uschar *p = ss;
708while (n-- > 0) *p++ = tolower(*s++);
709*p = 0;
710return ss;
711}
712
713
714/******************************************************************************/
715/* Growable-string functions */
716
717/* Create a growable-string with some preassigned space, in untainted memory */
718
719static inline gstring *
720string_get(unsigned size)
721{
722gstring * g = store_get(sizeof(gstring) + size);
723g->size = size;
724g->ptr = 0;
725g->s = US(g + 1);
726return g;
727}
728
729/* NUL-terminate the C string in the growable-string, and return it. */
730
731static inline uschar *
732string_from_gstring(gstring * g)
733{
734if (!g) return NULL;
735g->s[g->ptr] = '\0';
736return g->s;
737}
738
739static inline void
740gstring_release_unused(gstring * g)
741{
742if (g) store_reset(g->s + (g->size = g->ptr + 1));
743}
744
745/******************************************************************************/
eb2fb50d 746#endif /* !MACRO_PREDEF */
b66fecb4
HSHR		 747
748#endif /* _FUNCTIONS_H_ */
acec9514 749
9d1c15ef
JH		 750/* vi: aw
751*/
059ec3d9 752/* End of functions.h */
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